it really works , but there are some points you have to know. first: the if/serial number on the back of the device nu advice don't touch it , because if you go over it the number Will wipe out ,like the ink is not dry . so make a picture before you start. the second : you cannot unbind the device in the app third: the device does not work in the house, so why it has a SOS button then. the Manuel say so , but it is useless in side. that means if you are inside and youre in real Trouble you have
Dispositivo GPS tracker com deficiência de funcionamento.
works well, good information in the other review